Product name:4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid
CAS:7365-45-9
Molecular Formula:C8H18N2O4S
Formula Weight:238.3
Specification:25g
Description:
HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid ) is a zwitterionic organic chemical buffering agent; one of the twelve Good's buffers. HEPES is widely used in cell culture, largely because it is better at maintaining physiological pH despite changes in carbon dioxide concentration (produced by cellular respiration) when compared to bicarbonate buffers, which are also commonly used in cell culture. The dissociation of water decreases with falling temperature, but the dissociation constants (pK) of many other buffers do not change much with temperature.